NDLI: Pattern synthesis of an array antenna with maximum directivity and nulls at specified directions

Content Provider	IEEE Xplore Digital Library
Author	Kagoshima, K. Obote, S. Ichikawa, Y. Yamane, M. Tanaka, T.
Copyright Year	2005
Description	Author affiliation: Dept. of Media & Telecommun. Eng., Ibaraki Univ., Japan (Kagoshima, K.; Obote, S.)
Abstract	In order to solve a problem of maximizing a directivity of a transmitting array antenna with nulls at specified directions, we intended to utilize an adaptive antenna algorithm which enables the SNR to be maximum under the incidence of interferences. However, we encountered the discrepancy between transmitting antenna patterns and receiving ones. We investigated why this discrepancy arises, although a reciprocity theorem is effective between the transmitting pattern and the receiving one. Through these investigations, we derived the equation which determines the matched load impedances of the array elements and solved it numerically up to five elements. We also derived an equation to evaluate output voltages which are summed up into an output of the array and confirmed the coincidence between the transmitting pattern and the receiving one.
Sponsorship	Eur. Office of Aerosp. Res. and Dev. of the USAF IEEE Region 8 Office State Res. Inst. on Radar Sys. "Kvant-Radiolokatsiya" (Kyiv. Ukraine) Joint Stock Co. "TOPAZ" (Donetsk, Ukraine) Sci.-Production Co. "TERA" (Kyiv, Ukraine) Sci.-Production Co. "ROMSAT" (Kyiv, Ukraine) Joint Stock Co. "INCOM" (Kyiv, Ukraine)
Starting Page	18
Ending Page	22
File Size	670330
Page Count	5
File Format	PDF
ISBN	0780392612
DOI	10.1109/ICATT.2005.1496876
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-24
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transmitting antennas Null value Receiving antennas Voltage Directive antennas Current distribution Moment methods Feeds Equations Antenna arrays
Content Type	Text
Resource Type	Article

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